Help!! does he like me or am I just imagining it O_o?

Okay so theres this guy who i like in high school; i notice that he looks at me a lot (usually in a 'dancing eyes' or open eyed sorta way), he acts nervous around me in class (touches his hair, face etc).. i sit kinda behind him. Last year he used to kinda flirt (tease) me during class last year & would say hi to me everyday but suddenly he stopped & started looking at me a lot instead, (we dont talk anymore). his friends have also looked at me & were all standing around looking at me smiling, another time his friend pointed back at me staring... & one time i was sitting down in the cafeteria, when he walked by we locked eyes for like 5 secs, when he looked away he had a smile on his face & touched his hair, i know this might sound stupid but when it happened i felt a connection between us lol.. other situations have happened like this. but yeah, what do you think? i have a gut feeling he does, but im confused :(